Analysis and Approaches for IBDP Maths Ebook 2 | Page 94

Your Practice Set – Analysis and Approaches for IBDP Mathematics
9
5� � A1
10
9
� �
50
9 7
5 � ��
� � � � 3
� � ��
�
�
M1
� 50 � �10
�
9 21
5�
� � � 3�
M1
10 10
8� � 3
3
� �
8
3 9
Thus, � � and � � . AG
8 50
[7]
Exercise 28
1. In the figure, PSO , PTQ and RQO are straight lines. OP
� � p , OQ � � q , PS:SO � 2:3,
PT :TQ � 4:1 and 2RQ � 3QO .
(a)
(b)
Express RP
� in terms of p and q .
Express RT
� in terms of p and q .
[3]
[4]
(c)
Express TS
� in terms of p and q .
�
�
(d) It is given that TS��RT �1.2�q . Find the values of � and � .
[4]
[5]
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